1) when you make the familiar, Create it as a new race rather than as a copy of the Pseudragon. as you copy the template it copies the requirement, which afaik you cant change.

Actually you can remove the requirement. The requirement for Improved Arcane Familiar kicks in automatically when you set the level requirement in the editor. For instance, the Pseudodragon typically requires the caster be 7th level. By entering 7 into the "Familiar Level Requirement" field, it automatically triggers the Improved Arcane Familiar requirement. To remove this, simply delete the level requirement.